Fig. 6.

Predicted knee joint reaction force, expressed in body weight (BW), using eleven models in the atlas compared to the experimental measurement (solid line) and the subject-specific prediction (dashed line) in two representative gait cycles: (a) DM_ngait1 and (b) DM_bouncy5. The subject-specific model of DM from Ding et al. [39] is freely available at http://www.msksoftware.org.uk/software/freebody. The scaled-closest model is identified based on the regression; the scaled-others are presented as mean (dotted line) and standard deviations (shaded area). The root mean square error (RMSE) and coefficient of determination (R²) are calculated by comparing the difference between the model prediction with the experimental measurement. The RMSE and R² from the scaled-others models are expressed as mean ± standard deviation [range].